| 摘要 |
Disclosed a trigger switch having high dust-proof properties and waterproof properties. It includes: a case (11) having a switch chamber (12) in which a switch mechanism (14) is arranged in a sealed state; a plunger (13) inserted into a shaft hole (15) formed on one end side of the case (11) freely slidable, coupled to the switch mechanism (14), and biased forward; and a trigger (21) used for operating the switch by engaging and locking a distal end of the plunger (13), wherein the switch mechanism (14) includes an air pressure stabilizing mechanism configured to cancel an air compressing action in the interior of the switch chamber (12) caused by the switch mechanism moving in the interior of the switch chamber. The air pressure stabilizing mechanism includes a communication hole (16) extending from a rear end opening facing the switch chamber (12) to a distal end opening on the plunger (13), and a plunger-engaging portion (22) of the trigger includes a discharge port (24) communicating with the communication hole (16) and configured to release air from the communicating hole. |
